Bui Huu Thang

Android Developer with over 5 years of experience specializing in building scalable and high-performance mobile applications. Strong expertise in Kotlin, MVVM, and Clean Architecture, with a focus on performance optimization and maintainable code. Experienced in developing enterprise applications, integrating real-time systems, and improving system efficiency. Proven ability to deliver impactful features that enhance user experience and business operations.

Android Developer at Vulcan Labs Joint Stock Company (2025-01 – Present)

Built and scaled high-impact utility mobile applications used by millions of users, focusing on performance, user experience, and reliability. Proficient in designing scalable architectures, optimizing performance, and ensuring long-term maintainability for complex applications.

• Developed and maintained core application features with a focus on performance, stability, and user experience.
• Integrated and managed Firebase Remote Config to dynamically control features, optimize user experience, and support A/B testing.
• Implemented Firebase Crashlytics for real-time crash reporting and monitoring, enabling faster issue detection and resolution.
• Integrated AppsFlyer for user attribution, analytics tracking, and campaign performance measurement.
• Implemented Deep Linking and App Links, enabling seamless navigation and improving user acquisition, retention, and campaign targeting.
• Utilized AI-powered CLI agents to build and enhance application features, optimize performance, and streamline development workflows, contributing to improved product efficiency and user experience.
• Monitored and analyzed app performance using Android Vitals, proactively identifying and resolving ANR and crash issues.
• Optimized application performance, significantly reducing ANR rate and improving overall app stability.
• Built and maintained scalable architecture using MVVM + Clean Architecture, ensuring code maintainability and long-term scalability.
• Collaborated with cross-functional teams to improve product quality and deliver stable releases to production.
• Developed and launched 10+ mobile applications, reaching millions of users and supporting hundreds of thousands of concurrent users, delivering stable and high-performance experiences at scale.

Android Developer at OHQ Software Vietnam (2022-03 – 2025-01)

A CRM mobile application for employee management, including time attendance, KPI tracking, reporting, and role-based access control for managers.

• Designed and developed key modules such as attendance tracking, KPI management, and performance analytics.
• Optimized data processing speed, implemented API response caching, and enhanced overall user experience (UX).
• Integrated automated notification system for KPI updates and performance changes.
• Improved API response time by 75% (from 10s → 2.5s).
• Officially deployed in 10+ company branches nationwide.

Android Developer at Techres.vn (2020-01 – 2022-03)

A sales management application designed for enterprises to manage and monitor sales activities efficiently. The app supports order processing, inventory tracking, customer management, and real-time performance reporting across multiple branches.

• Developed core sales modules including order creation, invoice generation, and payment tracking.
• Integrated real-time data synchronization using Socket.IO to ensure up-to-date sales and inventory status.
• Implemented product scanning and management features using camera APIs and barcode recognition.
• Built analytics dashboards for sales performance and daily revenue tracking.
• Integrated Firebase Cloud Messaging (FCM) for order status and system notifications.
• Applied MVVM + Clean Architecture to separate business logic from UI, enhancing scalability and maintainability.
• Successfully deployed and used by over 200 enterprise employees across multiple departments.

Bachelor in Faculty of Information Technology – Thu Duc College of Technology (2017-09 – 2020-08)